after when u need to change to new milk bottle n nipple

ideally cup and spoon is better than bottle feed, because of low chance of infection. But bottle feed is convenient while travelling and easier to feed babies. As the child grows, it is better to switch him to drink from glass.

If you bottle feed your child he will fall sick (cold and cough) very often. and his teeth will cine front and he may also develop wheezing because of bottles. Normally Kids used to have adenoids and disappear on its own after few years. But the kids who are bottle fed will have enlarged adenoids (as said by a paediatrician) and get recurrent cold and fever. If the bottles are not sterilised properly it leads to severe bacterial infection also